Date: Wed, 24 May 2017 10:09:54 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r318781 - in head: share/man/man9 sys/sys Message-ID: <201705241009.v4OA9sMY043744@repo.freebsd.org>
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Author: kib Date: Wed May 24 10:09:54 2017 New Revision: 318781 URL: https://svnweb.freebsd.org/changeset/base/318781 Log: Add BIT_OR2(), BIT_AND2(), BIT_NAND2(), BIT_XOR() and BIT_XOR2(). Submitted by: Sebastian Huber <sebastian.huber@embedded-brains.de> MFC after: 2 weeks Modified: head/share/man/man9/bitset.9 head/sys/sys/bitset.h Modified: head/share/man/man9/bitset.9 ============================================================================== --- head/share/man/man9/bitset.9 Wed May 24 09:25:13 2017 (r318780) +++ head/share/man/man9/bitset.9 Wed May 24 10:09:54 2017 (r318781) @@ -24,7 +24,7 @@ .\" .\" $FreeBSD$ .\" -.Dd July 29, 2016 +.Dd May 24, 2017 .Dt BITSET 9 .Os .Sh NAME @@ -48,8 +48,13 @@ .Nm BIT_OVERLAP , .Nm BIT_CMP , .Nm BIT_OR , +.Nm BIT_OR2 , .Nm BIT_AND , +.Nm BIT_AND2 , .Nm BIT_NAND , +.Nm BIT_NAND2 , +.Nm BIT_XOR , +.Nm BIT_XOR2 , .Nm BIT_CLR_ATOMIC , .Nm BIT_SET_ATOMIC , .Nm BIT_SET_ATOMIC_ACQ , @@ -95,8 +100,33 @@ .Fa "const SETSIZE" "struct STRUCTNAME *bitset1" "struct STRUCTNAME *bitset2" .Fc .Fn BIT_OR "const SETSIZE" "struct STRUCTNAME *dst" "struct STRUCTNAME *src" +.Fo BIT_OR2 +.Fa "const SETSIZE" +.Fa "struct STRUCTNAME *dst" +.Fa "struct STRUCTNAME *src1" +.Fa "struct STRUCTNAME *src2" +.Fc .Fn BIT_AND "const SETSIZE" "struct STRUCTNAME *dst" "struct STRUCTNAME *src" +.Fo BIT_AND2 +.Fa "const SETSIZE" +.Fa "struct STRUCTNAME *dst" +.Fa "struct STRUCTNAME *src1" +.Fa "struct STRUCTNAME *src2" +.Fc .Fn BIT_NAND "const SETSIZE" "struct STRUCTNAME *dst" "struct STRUCTNAME *src" +.Fo BIT_NAND2 +.Fa "const SETSIZE" +.Fa "struct STRUCTNAME *dst" +.Fa "struct STRUCTNAME *src1" +.Fa "struct STRUCTNAME *src2" +.Fc +.Fn BIT_XOR "const SETSIZE" "struct STRUCTNAME *dst" "struct STRUCTNAME *src" +.Fo BIT_XOR2 +.Fa "const SETSIZE" +.Fa "struct STRUCTNAME *dst" +.Fa "struct STRUCTNAME *src1" +.Fa "struct STRUCTNAME *src2" +.Fc .\" .Fn BIT_CLR_ATOMIC "const SETSIZE" "size_t bit" "struct STRUCTNAME *bitset" .Fn BIT_SET_ATOMIC "const SETSIZE" "size_t bit" "struct STRUCTNAME *bitset" @@ -312,6 +342,23 @@ is composed of multiple machine words, performs multiple individually atomic operations.) .Pp The +.Fn BIT_OR2 +macro computes +.Fa src1 +bitwise or +.Fa src2 +and assigns the result to +.Fa dst . +(It is the +.Nm +equivalent of the scalar: +.Fa dst += +.Fa src1 +| +.Fa src2 . ) +.Pp +The .Fn BIT_AND macro clears bits absent from .Fa src @@ -328,6 +375,23 @@ is similar, with the same atomic semanti .Fn BIT_OR_ATOMIC . .Pp The +.Fn BIT_AND2 +macro computes +.Fa src1 +bitwise and +.Fa src2 +and assigns the result to +.Fa dst . +(It is the +.Nm +equivalent of the scalar: +.Fa dst += +.Fa src1 +& +.Fa src2 . ) +.Pp +The .Fn BIT_NAND macro clears bits set in .Fa src @@ -339,6 +403,53 @@ equivalent of the scalar: .Fa dst &= .Fa ~ src . ) +.Pp +The +.Fn BIT_NAND2 +macro computes +.Fa src1 +bitwise and not +.Fa src2 +and assigns the result to +.Fa dst . +(It is the +.Nm +equivalent of the scalar: +.Fa dst += +.Fa src1 +& ~ +.Fa src2 . ) +.Pp +The +.Fn BIT_XOR +macro toggles bits set in +.Fa src +in +.Fa dst . +(It is the +.Nm +equivalent of the scalar: +.Fa dst +^= +.Fa src . ) +.Pp +The +.Fn BIT_XOR2 +macro computes +.Fa src1 +bitwise exclusive or +.Fa src2 +and assigns the result to +.Fa dst . +(It is the +.Nm +equivalent of the scalar: +.Fa dst += +.Fa src1 +^ +.Fa src2 . ) .Sh BITSET_T_INITIALIZER EXAMPLE .Bd -literal BITSET_DEFINE(_myset, MYSETSIZE); Modified: head/sys/sys/bitset.h ============================================================================== --- head/sys/sys/bitset.h Wed May 24 09:25:13 2017 (r318780) +++ head/sys/sys/bitset.h Wed May 24 10:09:54 2017 (r318781) @@ -122,18 +122,48 @@ (d)->__bits[__i] |= (s)->__bits[__i]; \ } while (0) +#define BIT_OR2(_s, d, s1, s2) do { \ + __size_t __i; \ + for (__i = 0; __i < __bitset_words((_s)); __i++) \ + (d)->__bits[__i] = (s1)->__bits[__i] | (s2)->__bits[__i];\ +} while (0) + #define BIT_AND(_s, d, s) do { \ __size_t __i; \ for (__i = 0; __i < __bitset_words((_s)); __i++) \ (d)->__bits[__i] &= (s)->__bits[__i]; \ } while (0) +#define BIT_AND2(_s, d, s1, s2) do { \ + __size_t __i; \ + for (__i = 0; __i < __bitset_words((_s)); __i++) \ + (d)->__bits[__i] = (s1)->__bits[__i] & (s2)->__bits[__i];\ +} while (0) + #define BIT_NAND(_s, d, s) do { \ __size_t __i; \ for (__i = 0; __i < __bitset_words((_s)); __i++) \ (d)->__bits[__i] &= ~(s)->__bits[__i]; \ } while (0) +#define BIT_NAND2(_s, d, s1, s2) do { \ + __size_t __i; \ + for (__i = 0; __i < __bitset_words((_s)); __i++) \ + (d)->__bits[__i] = (s1)->__bits[__i] & ~(s2)->__bits[__i];\ +} while (0) + +#define BIT_XOR(_s, d, s) do { \ + __size_t __i; \ + for (__i = 0; __i < __bitset_words((_s)); __i++) \ + (d)->__bits[__i] ^= (s)->__bits[__i]; \ +} while (0) + +#define BIT_XOR2(_s, d, s1, s2) do { \ + __size_t __i; \ + for (__i = 0; __i < __bitset_words((_s)); __i++) \ + (d)->__bits[__i] = (s1)->__bits[__i] ^ (s2)->__bits[__i];\ +} while (0) + #define BIT_CLR_ATOMIC(_s, n, p) \ atomic_clear_long(&(p)->__bits[__bitset_word(_s, n)], \ __bitset_mask((_s), n))
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